taciturn

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taciturn
adjective

Pronunciation:
[tas-i-turn]

Definition:
Quiet, refraining from speech whilst in the company of others.

Usage:
"Sarah was in the middle of telling Jessica a rivetting story. Upon the arrival of strangers in their usually isolated corner of the school grounds she turned suddenly taciturn, and Jessica never did find out the end result of Mr. Genika's split-pant-seam debarkle."

Etymology:
Traces from the latin tacere, "to be silent."

- Love Tahlia, a yellow, squishy banana rolling down the road.